Ocean and Polar Research

Korea Institute of Ocean Science & Technology (한국해양과학기술원)
권호 표지
DOI QR코드

DOI QR Code

Year-to-year Variability of the Vertical Temperature Structure in the Youngsan Estuary

  • Cho, Yang-Ki (Department of Oceanography, Chonnam National University) ;
  • Lee, Kyeong-Sig (Interdisciplinary Program of Atmospheric Environmental Sciences Chonnam National University) ;
  • Park, Kyung-Yang (Department of Marine Resources Mokpo National University)
  • Published : 2009.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

Long-term observations were conducted between 1997 and 2002 to examine the variability of the vertical temperature structure in the Youngsan Estuary, southwest Korea, in summer. The observed hydrographic data revealed that the temperature minimum layer in the middle depth persisted through the entire summer of 2000 but was rarely observed in other years. The variability in the vertical structure might be affected by the air temperature during the previous winter and the density difference between the open sea and the estuary. In 2000, the air temperature in the previous winter was lowest and the horizontal density difference during summer was largest. The large horizontal density difference probably produced more active driving of warm water along the bottom, which would have intruded into the Youngsan Estuary. Furthermore, the cold previous winter would have provided a better condition for maintaining cold temperatures in the middle water layer for a longer period.

Keywords

References

  1. Bowden KF (1953) Note on wind drift in a channel in the presence of tidal currents. Proceedings of the Royal society of London, A219:426-446 https://doi.org/10.1098/rspa.1953.0158
  2. Byun DS, Wang XH, Holloway PE (2004) Tidal characteristic adjustment due to dyke and seawall construction in the Mokpo coastal zone, Korea. Estuar Coast Shelf Sci 59:185-196 https://doi.org/10.1016/j.ecss.2003.08.007
  3. Cho YK, Park LH, Cho C, Lee IT, Park KY, Oh CW (2004) Multi-layer structure in the Youngsan Estuary, Korea. Estuar Coast Shelf Sci 61:325-329 https://doi.org/10.1016/j.ecss.2004.06.003
  4. Dyer KR, New AL (1986) Intermittency in estuarine mixing. In: Wolfe DA(ed) Estuarine Variability. Academic Press, Orlando, pp 321-339
  5. Kang JW (1999) Changes in tidal characteristics as a result of the construction of sea-dike/sea-walls in the Mokpo coastal zone. Estuar Coast Shelf Sci 48:429-438 https://doi.org/10.1006/ecss.1998.0464
  6. Lee SW (1992) Korean nearshore oceanology. Jipmoondang, Seoul, 334 p
  7. Lee SW (1994) Change in tidal height at Mokpo Harbor due to the construction of Youngsan River Estuary Dyke. Korean harbour hydraul 18:27-37
  8. Lewis RE, Riddle AM, Lewis JO (1998) Effect of a tidal barrage on currents and density structure in Tees Estuary. In: Dronkers J, Scheffers M (eds) Physics of estuaries and coastal seas. Balkema, Roterdam, pp 33-38
  9. Lim HS, Park KY (1998) Community Structure of the Macrobenthos in the Soft Bottom of Youngsan River Estuary, Korea, 1. Benthic Environment. J Korean Fish Soc 31(3):330-342
  10. Lim HS, Park KY (1999) Community Structure of macrobenthos in the subtidal soft bottom in semi-enclosed Youngsan River Estuarine Bay, southwest coast of Korea. J Korean Fish Soc 32(3):320-332
  11. Officer CB (1976) Physical Oceanography of Estuaries (and Associated Coastal Waters). Wiley, New York, 465 p
  12. Rural Development Corporation of Korea (1999) Annual report of the management of the Estuary dike. Rural Development Corporation of Korea

Cited by

  1. In situ fate and partitioning of waterborne perfluoroalkyl acids (PFAAs) in the Youngsan and Nakdong River Estuaries of South Korea vol.445-446, 2013, https://doi.org/10.1016/j.scitotenv.2012.12.040
  2. Numerical Modeling of Sediment Transport during the 2011 Summer Flood in the Youngsan River Estuary, Korea vol.25, pp.2, 2013, https://doi.org/10.9765/KSCOE.2013.25.2.76
  3. A Modeling Study on Hypoxia Formation in the Bottom Water of the Youngsan River Estuary, Korea vol.314, 2015, https://doi.org/10.2112/JCOASTRES-D-13-00099.1
  4. GOCI, the world's first geostationary ocean color observation satellite, for the monitoring of temporal variability in coastal water turbidity vol.117, pp.C9, 2012, https://doi.org/10.1029/2012JC008046